Rotary engine.



9 .blade'sof the' rotor asseen on line 3.3, Fig.

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BOTARY ENGINE.

Specification of Letters Patent.

Application filed October .9,

Patented Aug. c, 1912.

1911. Serial N0. 653,599. 7

gines and more particularly to a rotary gas engine, and our object is to provide a device of this character wherein the volume of the compartments WlllCll receive gases decreased up to the ignition point and 'increased after ignition as the rotor revolves. A further ob ect of the invention resides in the provision of a rotor, the blades of which are so constructed as to be capable of compression or contraction laterally.

Still another object of the invention re 1 sides in the provision of a cylinder, the heads of which have the innerfaces thereof formed as cams, whereby the contraction and expansion of said blades will be effected.

Astill further object of the invention resides in forming the blades of the rotor of sections, which sections are acted upon by springs normally tending to force the same outwardly and intoengagement with the inner faces of the cylinder heads.

A still further object resides in the pro vision of a device which is extremely simple and durable in construction, and one which is very effective and useful in operation.

With these and other objects in view, our invention consists in the novel features ofconstruction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the; specification and claims.

In the accompanying drawings forming a part of this application, Figure 1 is a side elevation of the device partly in section. 1 Fig; 2 is a vertical transverse section there-; through as seen-on line 2-2, Fig. 1. Fig. 3 is a transverse section through one of the 2. Fig. 4 "is a yertical section through one; ofthe blades as'seen on line 44.-, Figs. -3,l and, Fig. 5 is a vertical section through one! off the blades as seen'on line' 5-.5',

-' Tncarr'ying out our invention we shalll refer tothe drawings in which similar ref erence characters designate corresponding parts throughoutthe several views and in which.

1 indicates a base or sole plate upon which is mounted. or formed integral therewith vertically extending and spaced apart supports 2, which supports form bearings for a rotatable shaft 3 extending therethrough. Mounted on the sole or bascl intermediate of any two of the bearings 2, isa cylinder 4 which may be of any size desired, and

secured to the cylinder at the ends thereof,

are the heads 5 and 6, respectively, through which extends the shaft 3.

Mounted within the cylinder 4 is a rotor which comprises a plurality of blades 7 radiating from the shaft 3, said blades being of a size adapted to constantly contact with the inner wall of the cylinder proper and the inner faces of the cylinder heads 5 and G. 7 on the shaft, when mounted within the cylinder, as disclosed in Fig. 2, provides a plurality of compartments 8 within said cylindcr, arid it will be appreciated that when the pressure is received within these compartments, the impact thereof against the blades '7 will tend to revolve the rotor within the cylinder to correspondingly, rotate the shaft 3. In order to provide means whereby the explosive mixture may enterfwithin the compartments 8, we provide the cylinder at The provision of this plurality of blades with an inlet port 9 in one side thereof be- 5 this valve so that the explosive mixture may enter within the chamber 10. After the gases have entered the chambers '8 of the cylinder, the same are adapted to be conipressed through a means which will be hereinafter and more particularly described, and

then fired at the highest point of pressure by means of a spark plug or the like 11, so that the expansion of -the burned gases will tend to aid the rotation of said rotor.

'- As the 'rotor revolveswithin the cylinder through th explosion and the expansion of the gases. ".thin the' compartments 8, the

i burned gases within said chambers 8 will be the supply of gas for that particular. comexhausted through the exhaust ports 14 and partment has been shut off, said blades will 15 in the bottom of said cylinder 4, and in tend toco-mpress through the medium of order to provide for the expansion and comthe cam faces '16. The contraction. of the pression of the'gases in'the compartments 8, blades will decrease the volume of the com- 5 we provide an improved form of blade 7 partments 8, thereby compressing the gases which cooperates with the inner faces of therewithin, and when the pressure of the the cylinder heads to increase and decrease, explosive mixture within said chambers the volume of the compartments between reaches its highest point, said gases are ex- 10 the respective blades in the space covered ploded by means of the spark plug 11. The 75 between the inlet and exhaust ports as the tendency of the exploded gases to expand, rotor is revolved .wi-hin the cylinder. In will, of course, rotate the rotor and the exorder to effect this result, we first provide pansion will be compensated for through I the heads 5 and 6 with inner cam faces 16, the expanding of the blades, due to the arsaid cams being-formed identically on both rangement of the cam faces 16, and after a 30 heads and the blades 7- are so constructed certain amount of, expansion has taken I as to yieldto the irregularities of the cams. place,. the blades are again contracted, These improved formsof blades comprise through the cam faces, to force said exan outer channel-shaped blade member 17 ploded gases outwardly through the exhaust 20 the inner or base portion of which is mountports 14 and 15. Thus, it will be seen that 5 ed on the shaft 3, said member 17 being of the gases will enter the chambers when the a width substantially equal to-the distance volume of the latter is increasing, and as between 'the innermost points of the cam the rotor revolves, the volume will gradually 16 on theheads5and'6. Mounted in the chandecrease until the same is at the point of.

1 nel-shaped member 17 so as'to projectbeyond ignition, whereupon the blades again tend 90 each side edge thereof, are the telescopto gradually expand, making room for the ing channel-shaped members or slides 18 expansion of the exploded gases as the rotor and, as shown in the'drawings, we have prorevolves, and the blades are then compressed vided four of these members 18 with a pair for a second time during the revolution of for each side edge, but it will be understood the rotor to force the exploded gases out- 95 that as many may be telescoped within one wardly through the exhaust ports. another,.as desired. "Mounted within each In order to provide means wherebythe of the telescoping slides 18, is a flat slide compression within the chambers 8 will not member 19, and loosely extending through be lost, the outer or free edges of the outer all of said slides, are the upper and lower member 17 and the upper and lower edges 100 guide bars 20 and 21. lhese guide bars reof the slides 19 are provided with additional tain the slides in proper position within one strips 23, and the outer edges of said meme anotherand within the'outer member 17, her 17 and the upper and lower edges of and in order to retain said slides normally the slides 19 are provided with sockets or 40 in their extended positions, as shown in the like 24 which receive therein small coil 1% Fig. 3, a plurality of coil springs 22 is prosprings 25, said coil springs being adapted vided and encircled about said guide bars' to contact with the inner faces of the strips.

20 and 21, a coil spring being provided be- 23 to force the same outwardly and into entween each pair of slides,.thereby forcing gagement with the contacting surfaces of the one outwardly from the other. When the objects which they may meet. The strips 11( properly, positioned within the cylinder, it on the outer edges of the member 17 and the will be seen that the tendency of these strips on the upper edges. of the slides 19 are springs 22 will be to force the slides or secadapted to contact with the inner wall of tions of the blade, as they may be termed, the cylinder 4, while the strips on the lower laterally so that the outer slide members 19 edges of the slides 19 are adapted to contact ill will engage or contact with the inner faces with, the shaft. 3, and thus, all, possible of the heads 5 and 6 of said cylinder, and chance of the loss of any compression within duringtthe rotation of the rotor within the the chamber 8 will be prevented and chance cylinder, the cam surfaces on the inner-faces for back firing eliminated.

of the cylinder heads will be compensated From the foregoing, it will be seen that 12 for'by the yielding of said slides through we. have provided an improved form of rosaid springs 22; I v tary'gas engine wherein means has been The cam surfaces'on the inner'cylinder provided for the increasingand decreasing heads are so arranged that when the exploof the volume of'the compartments between 50 sive mixture passesfrom the chamber 10' theblades of the rotor. It will further be 15 throughthe' port 9' I nd into the compart seen that this means is accomplished by pro- ,ments' 8, the blades areexpanding to; their riding cam surfaces on the inner faces 0 greatest extent, allowing theg greatest volthe cylinder heads and providing spring 011; H

- ume within the chambersB, and as soonas compression blades on the rotor,

said blades have passed-me port- 9 so that blades are adapted to yieldto theirregulariit? ing manifestly in the operation and one which having a plurality of radial blades thereon,

ties of the cam surfaces. It i will further be seen that by arranging the cams so that the spring blades will be opening at the inlet port and so that said blades will be compressed at the exhaust ports, gases which will enter, will be compressed, ignited and exhausted as the'rotor revolves, thereby aid of the device. It will still further be seen that our device is comparatively simple in construction, thereby readily and cheaply manufactured, one which is very durable in construction,

. and

is effective anduseful in operation.

What we claim is 1. An engine of the class described, comprising a cylinder provided with inlet and exhaust ports, a rotor within the cylinder having a plurality of radial blades thereon; said blades being formed of a plurality of telescoping sections, means to normally force the inner sections of the blades outwardlyand laterally, andmeans to cause the contraction of said sections as the rotor revolves.

2. An engine of the class described, comprising a cylinder provided with inlet and exhaust ports, 'a rotor within the cylinder having a plurality of radial bladesthereon, said blades being formed of a plurality of telescoping sections, spring means to force certain of the sections outwardly and. laterally, and means on the cylinder heads to rotor revolves.

3. An engine of the class described, comprising a cylinder provided with inlet and exhaust ports, a rotor within the cylinder said blades being formed .of a plurality of telescoping sections, spring means to force certain of the sections outwardly and laterally, and cam'surfaces on the inner faces of the cylinder heads with which the outer secand provided loosely telescoped therewithin and capable of lateral.

movement with respect thereto, guide means for said inner slide members, means to normally force said slide members outwardly and laterally, and means to cause the contraction of said sections as the rotor revolves withinthe cylinder.

An engine of the class described comprising a cylinder provided with inlet and exhaust ports, a rotor mounted therewithin provided with a plurality of radial blades, said blades being composed of outer channel-shaped members, additional'channel-shaped members telescoped within said outer members, inner fiat slide members telescoped within said additional channelshaped members, guiding means for said telescoped channel and flat slide members, spring means to normally force the same outwardly and laterally with respect to said outer channel-shaped members,and means on the cylinder heads to cause the contrac-,

tion of said movable member as the rotor revolves.

6. An engine of the class described comprising a cylinder provided with. inletand exhaust pipes, a rotor mounted t-herewithin blades, said blades comprising channelshaped outer sections, additional channelshaped slide sections telescopedtherewithin, fiat central slides telescoped within the adwith, a plurality of radial ditional channebshaped members, guide rods extending through said slide members, and spring means encircling said guide rods between the respective slide members to normally force the same outwardly. and

laterally with respect to the outer channel- 'shaped members, and means. on the cylinder heads to cause the contraction of said slide members as the rotor revolves.

In testimony whereof .we hereunto afiix our signatures in the presence of two wittions bit the blades are adapted to contact. nesses. v

4. An engine of the class described com- JACOB L. SCHMEHL. prising a cylinder provided with inlet and t EDWARD M. MACNALLY. exhaust ports, a rotor within the cylinder ivltnesse having a plurality of radial blades thereon, JOSEPH H. MCGEE, said blades'being composed of outer chan JOSEPH WALCOVICH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, fi. G. 

